656219240

素因数分解:

$2^3\times 5^1\times {\mathrm{59}}^1\times {\mathrm{109}}^1\times {\mathrm{2551}}^1$

素因数の和:2730

約数の個数: 64

約数和(自身を含む): 1515888000

約数和(自身を除く): 859668760

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 59, 109, 118, 218, 236, 295, 436, 472, 545, 590, 872, 1090, 1180, 2180, 2360, 2551, 4360, 5102, 6431, 10204, 12755, 12862, 20408, 25510, 25724, 32155, 51020, 51448, 64310, 102040, 128620, 150509, 257240, 278059, 301018, 556118, 602036, 752545, 1112236, 1204072, 1390295, 1505090, 2224472, 2780590, 3010180, 5561180, 6020360, 11122360, 16405481, 32810962, 65621924, 82027405, 131243848, 164054810, 328109620, 656219240]

約数ペア:

[(1, 656219240), (2, 328109620), (4, 164054810), (5, 131243848), (8, 82027405), (10, 65621924), (20, 32810962), (40, 16405481), (59, 11122360), (109, 6020360), (118, 5561180), (218, 3010180), (236, 2780590), (295, 2224472), (436, 1505090), (472, 1390295), (545, 1204072), (590, 1112236), (872, 752545), (1090, 602036), (1180, 556118), (2180, 301018), (2360, 278059), (2551, 257240), (4360, 150509), (5102, 128620), (6431, 102040), (10204, 64310), (12755, 51448), (12862, 51020), (20408, 32155), (25510, 25724)]